UNI-T UTD2152CL User Manual

UTD2000 Series User Manual
27
Chapter IV Trigger System
When to collect data and display waveform depends on the trigger system. The DSO will
convert the unstable displays into meaningful waveform after the trigger is set correctly.
When the DSO start collecting data, it will firstly collect enough data to draw a waveform
on the left of trigger. DSO will consecutively collect data while it waits the occurrence of
trigger condition. After the trigger is detected, DSO consecutively collect enough data to
draw a waveform on the left of trigger. The trigger control area of DSO operation panel
includes:
LEVEL knob: Trigger level adjustment knob, set the corresponding voltage value of trigger
point.
SET TO ZERO: Set the trigger level to the vertical center of trigger signal range.
TRIG MENU: Trigger setting menu button.
Trigger Control
 Trigger Type: Edge, pulse, video, slope and alternating trigger.
 Edge Trigger: When the edge of trigger signal satisfies a certain set level, the
trigger starts.
 Pulse Width Trigger: When the pulse width of the trigger signal satisfies a certain
set condition, the trigger starts.
 Video Trigger: Conduct field or line trigger for standard video signal.
 Slope Trigger: When the rising/descending slope of signal meets with the set value,
the trigger starts.
 Alternating Trigger: CH1 and CH2 trigger their own signals alternatively, applicable
to trigger signals without frequency correlation.
4.1 Edge trigger
Edge trigger mode refers to triggering of trigger threshold on the input signal edge. When
selecting “edge trigger”, trigger on the rising edge or falling edge of input signal shall be
completed.
Table 4-1 Edge trigger menu
Function Menu
Setting
Description
Type
Edge
Source
CH1
Set CH1 as the triggering signal source.
CH2
Set CH2 as the triggering signal source.
EXT
Set external trigger input channel as the triggering signal source.
AC Line
Set AC power line as trigger source.
Slope
Rising
Set trigger on the signal rising edge.
Falling
Set trigger on the signal falling edge.
Rise/fall
Set trigger on the signal both rising and falling edge.

UNI-T UTD2152CL Specifications

General

Brand	UNI-T
Model	UTD2152CL
Category	Test Equipment
Language	English

Summary

General Safety Overview

Safety Precautions and Guidelines

Essential safety measures for operating the oscilloscope to prevent injury and damage.

Mains Supply Cord Set Specification

Details the specifications for power cords suitable for different regions (EU, US/CAN).

Safety Terms and Symbols

Safety Terms and Definitions

Explains safety terms like Danger, Warning, and Note used in the manual and on the product.

Safety Symbols and Meanings

Chapter I Introductions

Automatic Waveform Display Settings

Vertical System Introduction

Horizontal System Introduction

Trigger System Introduction

Chapter II Vertical System

Setting Channel Coupling Modes

How to configure AC, DC, or GND coupling for input channels.

Channel Bandwidth Limit Configuration

Setting the bandwidth limit for signal acquisition to filter frequencies.

Probe Attenuation Setting

Adjusting the probe attenuation coefficient for accurate vertical scale readings.

Vertical Volts/Div Adjustment

Setting the vertical scale (Volts/Div) for signal amplitude display.

Chapter III Horizontal System

Horizontal Control Knobs and Buttons

Operating horizontal time base scale and position controls.

Chapter IV Trigger System

Edge Trigger Configuration

Setting triggers based on signal edge transitions (rising/falling).

Pulse Width Trigger Settings

Triggering based on the duration of a pulse (positive or negative).

Slope Trigger Configuration

Triggering based on the rate of signal rise or fall.

Chapter V Acquire System

Acquire Function Menu and Modes

Settings for data acquisition modes: Sampling, Peak Value, Average, etc.

Chapter VI Display System

Chapter VII Automatic Measurement

Automatic Measurement Menu

Accessing and configuring the automatic measurement functions.

Voltage Measurement Parameters

Details of voltage parameters like Vmax, Vmin, Vpp measured by the DSO.

Time Measurement Parameters

Details of time parameters like Period, Rise Time, Fall Time measured by the DSO.

Other Measurement Parameters

Other waveform parameters including duty cycle, overshoot, and phase.

Chapter VIII Cursor Measurement

Cursor Measurement Menu Setup

Configuring cursor type (voltage/time), mode, unit, and source.

Cursor Measurement Display and Usage

How to use cursors to measure voltage and time differences on waveforms.

Chapter X Utility System

AUTO Strategy Configuration

Customizing the behavior of the AUTO waveform setting function.

Chapter XI Other Function Buttons

AUTO Setting Operation

Using the AUTO button for automatic adjustment of waveform display.

RUN/STOP Button Functionality

Controlling the oscilloscope's acquisition state between running and stopping.

Chapter XIII System Prompts and Troubleshooting

Troubleshooting Common Issues

Solutions for common problems like no waveform display or trigger instability.